Recursos de colección

1.
A Review of Minority Stress Related to Employees' Demographics
and the Development of an Intersectional Framework for Their
Coping Strategies in the Workplace - Köllen, Thomas
Every employee embodies manifestations of every demographic that attach to him or her
different minority and majority statuses at the same time. As these statuses are often related to
organizational hierarchies, employees frequently hold positions of dominance and
subordination at the same time. Thus, a given individual's coping strategies (or coping
behavior) in terms of minority stress due to organizational processes of hierarchization,
marginalization and discrimination, are very often a simultaneous coping in terms of more
than one demographic. Research on minority stress mostly focuses on single demographics
representing only single facets of workforce diversity. By integrating the demographics of
age, disability status, nationality, ethnicity, race, sexual orientation,...

2.
Computing Semantic Association:
Comparing Spreading Activation and Spectral
Association for Ontology Learning - Wohlgenannt, Gerhard; Belk, Stefan; Schett, Matthias
Spreading activation is a common method for searching semantic
or neural networks, it iteratively propagates activation for one
or more sources through a network { a process that is computationally
intensive. Spectral association is a recent technique to approximate
spreading activation in one go, and therefore provides very fast computation
of activation levels. In this paper we evaluate the characteristics
of spectral association as replacement for classic spreading activation in
the domain of ontology learning. The evaluation focuses on run-time performance
measures of our implementation of both methods for various
network sizes. Furthermore, we investigate differences in output, i.e. the
resulting ontologies, between spreading activation and spectral association.
The experiments confirm...

3.
A Prototype for Automating Ontology Learning and Ontology Evolution - Wohlgenannt, Gerhard; Belk, Stefan; Schett, Matthias
Ontology learning supports ontology engineers in the complex task of creating an ontology. Updating ontologies
at regular intervals greatly increases the need for expensive expert contribution. This naturally leads to
endeavors to automate the process wherever applicable. This paper presents a model for automated ontology
learning and a prototype which demonstrates the feasibility of the proposed approach in learning lightweight
domain ontologies. The system learns ontologies from heterogeneous sources periodically and delegates all
evaluation processes, eg. the verification of new concept candidates, to a crowdsourcing framework which
currently relies on Games with a Purpose. Furthermore, we sketch ontology evolution experiments to trace
trends and patterns facilitated by...

4.
A UML Extension for the Model-driven Specification of Audit Rules - Hoisl, Bernhard; Strembeck, Mark
In recent years, a number of laws and regulations (such as
the Basel II accord or SOX) demand that organizations record certain
activities or decisions to fulfill legally enforced reporting duties. Most of
these regulations have a direct impact on the information systems that
support an organization's business processes. Therefore, the definition of
audit requirements at the modeling-level is an important prerequisite for
the thorough implementation and enforcement of corresponding policies
in a software system. In this paper, we present a UML extension for the
specification of audit properties. The extension is generic and can be applied
to a wide variety of UML elements. In a model-driven development
(MDD) approach,...

5.
Dimensions and Operationalisations of IT Governance: A Literature Review and Meta-Case Study - Novotny, Alexander; Bernroider, Edward; Koch, Stefan
This paper seeks to tackle the current confusion about the constituent dimensions of IT Governance (ITG) and inconsistent operationalisation approaches inhibiting advances in research and organisational ITG practice. Through a structured literature review of ranked high-quality publications augmented by a meta-case study with five underlying projects, we find nine distinct dimensions of ITG. The input-oriented dimensions Compliance Management, IT Investment Management and ITG Improvement have received little attention in earlier conceptualisations, while the more output-oriented dimensions Business/IT Alignment and Business Value Delivery have featured more often in related studies. Scope and application of ITG may depend on the organisational context...

6.
The economic and environmental performance of distribution networks: A case study from the petrochemical industry - Treitl, Stefan; Jammernegg, Werner
Designing a company's distribution network is a challenging task that requires the consideration of different aspects. In this respect, especially trade-offs between, for example, operational costs and customer service are the focus of the companies' attention. However,
growing concerns of governments and customers about environmental protection have raised awareness towards the environmental impact of operations. Activities associated with the distribution of products, i.e. transportation and warehousing, are not yet subject to strict
environmental regulations, but this situation is expected to change soon. Companies must, therefore, start to concentrate not only on economic but also on environmental aspects in the design of their...

8.
The economic and environmental analysis of a petrochemical distribution network - Treitl, Stefan; Jammernegg, Werner
The structure of a company's distribution network is of vital importance for competitiveness but also involves
considerable costs. In recent years, competitive pressure as well as regulatory measures, especially in the European
Union, have also raised awareness towards the environmental impact of supply chain activities. However, activities associated with the distribution of products are not yet subject to environmental regulations but this might change in the near future. Therefore, companies will have to consider not only economic but also environmental aspects in the design of their supply chains. Based on a case study from the petrochemical industry we present a way to...